Trolley



w. 5.855 AND'W. E. SIMPSON.

TROLLEYQ APPLICATION FI LED FEB. 28, I921.

' PatentedSept. 12, 1922';

3 SHEETS-SHEET I.

luuowtom w; E. BEE AND W. E. SIMPSON.

TROLLEY.

APPLICAHON nuzo FEB-28,1921.

1,428,934. PatentedSept. 12,1922,

' 3 SHEETSSHEET 2.

W. E. BEE AND W. E. SIMPSON.

T ROLLEY.

APPLICATION FILED FEB. 28, I921.

Patented Sept. 12, 1922 3 SHEETS-SHEET 3.

Wm AMA.-

Patented Sept. 12, 1922.

UNITED stares PATENT OFFICE.

WILLIAM E. BEE AND WILLIAM E. SIMPSON, OF DETROIT, MICHIGAN, ASSIGNORS TO PALMER-BEE COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

TROLLEY.

Application filed February 28, 1921. Serial No. 448,472.

To all whom it may concern:

Beit known that we, WILLIAM E. BEE and WILLIAM E; SIMrsoN, a citizen of the United States of America and asubject of the King of Great Britain and Ireland, respectively, residing at Detroit, in the county of WV'ayne and State of-Miclngan, have invented certain new and useful Improvements in Trolleys, of which the following is a specification referencebeing had therein to the accompanying drawings.

The invention relates to trolleys and has for one of its objects theprovision of a trolley having a frame which may be formed of v material such'as cast or malleable iron, and whichis reinforced to carry the loads to which it is subjected, whereby the cost of. manufacture is greatly decreased as comparedto that of a steel frame. Another object is to ,provide a trolley which is adapted to engage different sizes of track and has laterally adjustablev frames held in their adjusted positions by cooperating serrations. A further object is the provision of means upon the pin extending transversely of the frames and secured thereto for positioning the work carrying member. The invention has for other objects the novel features of construction and combinations and arrange ments of parts as more fully hereinafter set forth.

"In the drawings;

Figure 1 is a side elevation of a trolley embodying our invention;

Figure 2 is an end elevation thereof, partly, in section on. the line 2-2 of Figure 1; r x

Figure 3 is a top plan viewthereof, partly in sectio on the line 3-3 of Figure 1;

Figure 4 is a cross section on the line 44 of Figure 2;-

, Figure 5 is a cross section on the line 5- 5 of'Figu're 2;

Figure 6 is an end elevation of a modi fiedconstruction of trolley;

Figure 7 is a side elevation in section;

Figure cap of thefmodified construction.

1 is the track, preferably an I -beam, upon the lower flanges'2' of which the trolley is supported. This trolley has the spaced frames 3, each of which. is preferably of triangular shape and embraces the pair of wheels trotatably mounted upon the shafts thereof partly 8 is an endelevation of a clamping 5 near its upper edge'and at the front and rear ends thereof. Each frame comprises I the front and rear plates 6 and 7 respectively, which are secured to each other by the bolts 8 and nuts 9.

The plates 6 have the enlarged transversely extending portions 10 at their lower edges, which have the recesses 11 for engagement by the pin 12 extending transversely of the frames. 13 are caps secured to the plates for supporting the pin from the plates. The pin 12 is rotatably mounted to permit of equalizing the load upon each of the wheels of the frames in the event that the track is not horizontal throughout its length. To permit of laterally adjusting the frames 3 and to maintain the same in their laterally adjusted positions, the pin 12 has the series of recesses or cuts 16 which are engageable in by the stops 15 upon the caps 13. The stops and recesses or cuts are serrations extending longitudinally of the caps and pin and those upon the pin are of a length and pitch sufficient to permit of the desired lateral adjustment of the spaced frames 3 to engage tracks of different size.

For the purpose of reducing the cost of manufacture of the trolley, the frames 3 are formed of cast or malleable iron and are reinforced by members which secure the caps 13 to the frames. In detail, 17 are U-shaped rods which extend from the upper edges of the frames parallel to their outer faces and around the outer ends of the caps. The plates 6 have their portions intermediate the arms of the rods enlarged and also the flanges 18 at their upper edges and beyond the enlargement through which the rods extend and to which they are secured by the nuts 19.

The load is carried from the load carrying member or clevis 20 which is mounted upon the pin' 12 near its middle and passes between the enlarged portions 10 and the caps 13. In order to take care of any outward turning movement of the frames 3 relative to the pin 12, the inner ends of the caps and enlarged portions are secured to each other by the bolts 21 and nuts'22.

To position the work carrying member or clevis 20, the pin 12 has the annular groove 23 at its middle which is engaged in by the clevis. This clevis isv preferably formed of a round continuousbar and has its portions 24 intermediateits ends bent inwardly to be separated a less distance. than the diameter of the pin 12, thereby preventing upward movement of the clevis relative to the pin.

In the modified construction disclosed in F iguresfi, 7 and 8, each of the frames 25 has at its lower end the integral hub 26'having' at its outer end the bearing 27 for engag ng the transversely extending load carrying pin 28. The U-shaped re-inforcing rod 29 passes around the hub, this bearing being preferably provided with thegroove 30 for engagement by the circular portion of the U-shapedrod to prevent disengagement thereof. I

I or positioning the frame 25 in their various; positions of adjustment toengage tracks of different size, there is the cap 31 which is secured to the inner end of the hub 26 of the frame as by means of the bolts 32, this cap having the-pairof teeth 33 which are engageable in the recesses or cuts 34 6X- tending longitudinally of the pin 28. This cap ispreferably secured to the side of the hub. The teeth 33 engage the recesses or cuts 34: with sufficient clearance to permit of the desired amount of rotation ofthe pin 28-so that in the event the track inclines from the horizontal, equal load will be placed upon the trolley'wheels carrying the frame. lVith this arrangement, it will be seen that theframes'25 may be adjusted to the desired positions by moving the same longitudinallyupon the pin 28 after which the caps are bolted to the frames so that their teeth will engage'in the recesses or cuts in the pin, thereby -maintaining the frames in their adjustment positions.

From the above description it will be readily seen thatywe have provided a construction of trolleyhaving a frame which can be manufactured'at a greatly reduced cost andwhich, at the same time, will carry the loads to which it is subjected. Also a simple arrangement is provided which comprises the cooperating serrations for maintaining the -frames of thetrolley in' their l aterallyadjustable spaced relations. .Still another feature disclosed is the annular groove inthe pinforpositioning the clevis and the bent inward portions of the clevis intermediate its ends to' prevent 1 its upward movement relative to'the pin.

What we claim" as our invention is:

1. In a' trolley, the combination'wi'th' a frame, of-sepa-rate' means for reinforcing said frame and relieving the same of direct tension "stresses. I

" 2." In a: trolley,"the combination with a frame for carrying a-load, of a tension member for reinforcing said frame. Y

* 3. In a trolley,"the-combination with a frame having [a bearing, of a member mounted in said bearing," and a rod upon said frame and-engaging said bearing, con stituting a reinforcement therefor.

4. In a trolley, the combination with a framehaving a bearing, of a member for carrying the load mounted in said bearing, and a U-shaped rod upon said frame and passing aroundsaid bearing, said rod constituting a reinforcement for said frame.

5. In a, trolley, the combination with a frame having a bearing at its lower edge, of

wheelsnear :theupp er-edge and at the front and rear ends of said frame for carrying the same, a pin engaging in saidbearing for carrying thexlozidmand: a rod depending from the upper edge'of saidfr'ame and passing around'said bearing, s'aidrod "constituting a reinforcement-for said frame. I

6. In a trolley theycombination with-a frame, of al'=cap se'cured to said frame, and a U-shaped rod' upon said frame and-passing around said cap, said rodconstituting a reinforcement'=for said frame. 7 In a trolley,-'the =combinationflwithf a pair of adjustably" spaced' frames, or means for securing *said frames --in various po'sij tions of adjustment, said means constitutmg a connection betwe'en the "loadand' said frame, and separate means for reinforcing and relieving the same "of direct tension stresses.

8. In a I trolley, the *combinationw-ith a pair of 'adjustably'i'spaced frames, of" a load carrying member secured -"to" one of said frames,"and a cap' securd to the oth'eri'of said frames andpos'itioningsaid frames and loadjcarrying member'relative to each other.

9. In a "trolley,' *'tl 1e combination with a pair of spaced frames," of afpirr extending thereb'etween and I secured-to one of "said frames, a'cap secured 'to the other ofsaid frames, serrations upon said cap, and cooper ating serrations upon saidwhereby said last mentioned frame positioned rela'- tive to said first-mentiond-frame and said pm. I w

10. In a trolley, the'f'combination"with" a pair of spaced frame'sfof means near their upper edges for-"supporting the same, caps detachably secured to the lower edges of'said frames, a pin engaging said 'caps,"said frames being 'movable longitudinally of said" pin, and cooperatingmeans upon said: frames, caps and pin for positioning the same'in -the various positions -'-ofadjustment 0 of *said frames.

11'. In a trolley, the' combination 'v'vithia pair of spaced frames, of a 'p'in" extending transverselythereof and securedthereto,'said pin. having an annular groove, a depending clevis upon said pin engaging in said annular groove,"and m'e'ans for preventing upward movement" of saidzclevis relative "to said pin.

p 12. In a trolley, T the combination'with" a 2' pair of adj ustably' spaced" frames, of a pin extending transversely thereof andisecured thereto, saidp'in having 'an' 'annular groove intermediate said frames, and a depending -supon said pin and depending between said clevis upon said pin engaging in said annular groove, said olevis having inwardly bent portions engaging said pin below its axis for preventing upward movement of said olevis relative to said pin.

18. In a trolley, the combination with a pair of frames, of wheels near their upper edges for supporting the same, caps secured to the lower edges of said frames, said frames being laterally movable relative to their respective caps, a pin extending transversely of said frames and secured by said caps, cooperating serrations upon said caps and pin for positioning said frames in their various positions of adjustment, a clevis caps, and a groove in said pin engageable in by said clevis for positioning the latter upon the former.

14. In a trolley, the combination with a frame, of a U-shaped rod upon said frame and reinforcing the same.

15. In a trolley, the combination with a frame for carrying a load, of a U-shaped rod depending from the upper edge of said frame and adapted to relieve said frame of tension owing to the load.

In testimony whereof we afiix our signatures.

WILLIAM E. BEE. I WILLIAM E. SIMPSON. 

